The most commonly used and simplest holiday greetings are, as you might expect:
1. Happy New Year!
2. Best wishes for a happy New Year.
3. May your New Year start out joyful!
4. Good fortune and success in the New Year!
5. May the season's joy stay with you all year round!
6. May joy and happiness surround you today and always!
7. Even though we're apart, you're in my heart this New Year's season.
8. Wishing you peace, joy and happiness throughout the coming year.
Then they get more complicated:
1. May the warmest of wishes, happiest of thoughts and friendliest of greetings come to you and stay with you throughout the year.
2. Wishing you a holiday season filled with joy, and all the happy things in life.
3. I was looking out the windows thinking about the person I care most about and the person that came to mind was you, so I want to wish you a Happy New Year.
4. Another year has come to an end. And it's nice to have a friend like you to make my every day so great. Thank you my dear friend.